<template>

    <el-container class="home-container">
        <!-- 头部 -->
    <el-header>
        <div>
            <img src="../assets/heima.png" alt="">
            <span>电商后台管理系统</span>
        </div>
        <el-button type="info" @click='logout'>退出</el-button>
    </el-header>
    <!-- 页面主体 -->
    <el-container>
        <!-- 侧边栏 -->
        <el-aside :width="isCollapse ? '64px' : '200px'">
            <div class="toggle-button" @click="toggleCollapse">|||</div>
            <!-- 侧边栏菜单区域 -->
             <el-menu
      background-color="#333744"
      text-color="#fff"
      active-text-color="#409EFF" :unique-opened='true' :collapse="isCollapse" :collapse-transition="false" router :default-active='activePath'>
      <!-- 一級菜单 -->
      <el-submenu :index="item.id+''" v-for="item in menulist" :key='item.id'>
          <!-- 一级菜单模板区域 -->
        <template slot="title">
            <!-- 图标 -->
          <i :class="iconsObj[item.id]"></i>
          <!-- 文本 -->
          <span>{{item.authName}}</span>
        </template>
        <!-- 二级菜单 -->
        <el-menu-item :index="'/'+subItem.path" v-for="subItem in item.children" :key='subItem.id' @click="saveNavState('/'+subItem.path)">
            <template slot="title">
            <!-- 图标 -->
          <i class="el-icon-menu"></i>
          <!-- 文本 -->
          <span>{{subItem.authName}}</span>
        </template>
        </el-menu-item>
      </el-submenu>
    </el-menu>
        </el-aside>
        <!-- 右侧内容主体 -->
        <el-main>
            <router-view></router-view>
        </el-main>
    </el-container>
    </el-container>
</template>
<script>
export default {
    data(){
        return{
            menulist:[],
            iconsObj:{
                '125':'iconfont icon-users',
                '103':'iconfont icon-tijikongjian',
                '101':'iconfont icon-shangpin',
                '102':'iconfont icon-danju',
                '145':'iconfont icon-baobiao'
            },
            //是否折叠
            isCollapse:false,
            //被点击激活的连接地址
            activePath:''
        }
    },
    created(){
        this.getMenuList()
        this.activePath=window.sessionStorage.getItem('activePath')
    },
    methods:{
        logout(){
            window.sessionStorage.clear()
            this.$router.push('.login')
        },
        async getMenuList(){
          const {data:res}=await this.$http.get('menus')
          if(res.meta.status!==200)return this.$message.error(res.meta.msg)
          this.menulist=res.data
        //   console.log(res);
          
        },
        toggleCollapse(){
            this.isCollapse=!this.isCollapse
        },
        saveNavState(activePath){
            window.sessionStorage.setItem('activePath',activePath)
            this.activePath=activePath
        }
    }
}
</script>
<style lang='less' scoped>
.home-container{
    height: 100%;
}
.el-header{
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    >div{
        display: flex;
        align-items: center;
        span{
            margin-left: 15px;
        }
    }
}
.el-aside{
    background-color: #333744;
    .el-menu{
       border-right: none;
    }
}
.el-main{
    background-color: #EAEDF1;
}
.iconfont{
    margin-right: 10px;
}
.toggle-button{
    background-color: #4A5064;
    font-size: 10px;
    line-height: 24px;
    color: #fff;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
}
</style>